DETROIT (AP) — A federal judge has refused to acquit or grant new trials to former Detroit Mayor Kwame Kilpatrick, his father and a city contractor.

The decision Thursday clears the way for Kilpatrick’s sentence for corruption on Sept. 3.

Kilpatrick and Bobby Ferguson were convicted in March of a sweeping scheme to enrich themselves through fixed contracts, bribes and kickbacks. Kilpatrick’s father, Bernard, was convicted of a tax crime.

Kwame Kilpatrick appeared in court wearing tan prison clothes. He and Ferguson have been in custody since being found guilty in March. Ferguson will be sentenced on Sept. 4.